[PATCH 2/8] xfs: fix confusing variable names in xfs_bmap_item.c

Darrick J. Wong
2022-12-30T22:33:31Z

Variable names in this code module are inconsistent and confusing.
xfs_map_extent describe file mappings, so rename them "map".
xfs_bmap_intents describe block mapping intents, so rename them "bi".

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/xfs_bmap_item.c | 56 ++++++++++++++++++++++++------------------------
1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index 13aa5359c02f..6e2f0013380a 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -283,24 +283,24 @@ xfs_bmap_update_diff_items(
/* Set the map extent flags for this mapping. */
static void
xfs_trans_set_bmap_flags(
- struct xfs_map_extent *bmap,
+ struct xfs_map_extent *map,
enum xfs_bmap_intent_type type,
int whichfork,
xfs_exntst_t state)
{
- bmap->me_flags = 0;
+ map->me_flags = 0;
switch (type) {
case XFS_BMAP_MAP:
case XFS_BMAP_UNMAP:
- bmap->me_flags = type;
+ map->me_flags = type;
break;
default:
ASSERT(0);
}
if (state == XFS_EXT_UNWRITTEN)
- bmap->me_flags |= XFS_BMAP_EXTENT_UNWRITTEN;
+ map->me_flags |= XFS_BMAP_EXTENT_UNWRITTEN;
if (whichfork == XFS_ATTR_FORK)
- bmap->me_flags |= XFS_BMAP_EXTENT_ATTR_FORK;
+ map->me_flags |= XFS_BMAP_EXTENT_ATTR_FORK;
}

/* Log bmap updates in the intent item. */
@@ -308,7 +308,7 @@ STATIC void
xfs_bmap_update_log_item(
struct xfs_trans *tp,
struct xfs_bui_log_item *buip,
- struct xfs_bmap_intent *bmap)
+ struct xfs_bmap_intent *bi)
{
uint next_extent;
struct xfs_map_extent *map;
@@ -324,12 +324,12 @@ xfs_bmap_update_log_item(
next_extent = atomic_inc_return(&buip->bui_next_extent) - 1;
ASSERT(next_extent < buip->bui_format.bui_nextents);
map = &buip->bui_format.bui_extents[next_extent];
- map->me_owner = bmap->bi_owner->i_ino;
- map->me_startblock = bmap->bi_bmap.br_startblock;
- map->me_startoff = bmap->bi_bmap.br_startoff;
- map->me_len = bmap->bi_bmap.br_blockcount;
- xfs_trans_set_bmap_flags(map, bmap->bi_type, bmap->bi_whichfork,
- bmap->bi_bmap.br_state);
+ map->me_owner = bi->bi_owner->i_ino;
+ map->me_startblock = bi->bi_bmap.br_startblock;
+ map->me_startoff = bi->bi_bmap.br_startoff;
+ map->me_len = bi->bi_bmap.br_blockcount;
+ xfs_trans_set_bmap_flags(map, bi->bi_type, bi->bi_whichfork,
+ bi->bi_bmap.br_state);
}

static struct xfs_log_item *
@@ -341,15 +341,15 @@ xfs_bmap_update_create_intent(
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_bui_log_item *buip = xfs_bui_init(mp);
- struct xfs_bmap_intent *bmap;
+ struct xfs_bmap_intent *bi;

ASSERT(count == XFS_BUI_MAX_FAST_EXTENTS);

xfs_trans_add_item(tp, &buip->bui_item);
if (sort)
list_sort(mp, items, xfs_bmap_update_diff_items);
- list_for_each_entry(bmap, items, bi_list)
- xfs_bmap_update_log_item(tp, buip, bmap);
+ list_for_each_entry(bi, items, bi_list)
+ xfs_bmap_update_log_item(tp, buip, bi);
return &buip->bui_item;
}

@@ -398,10 +398,10 @@ STATIC void
xfs_bmap_update_cancel_item(
struct list_head *item)
{
- struct xfs_bmap_intent *bmap;
+ struct xfs_bmap_intent *bi;

- bmap = container_of(item, struct xfs_bmap_intent, bi_list);
- kmem_cache_free(xfs_bmap_intent_cache, bmap);
+ bi = container_of(item, struct xfs_bmap_intent, bi_list);
+ kmem_cache_free(xfs_bmap_intent_cache, bi);
}

const struct xfs_defer_op_type xfs_bmap_update_defer_type = {
@@ -419,18 +419,18 @@ xfs_bui_validate(
struct xfs_mount *mp,
struct xfs_bui_log_item *buip)
{
- struct xfs_map_extent *bmap;
+ struct xfs_map_extent *map;

/* Only one mapping operation per BUI... */
if (buip->bui_format.bui_nextents != XFS_BUI_MAX_FAST_EXTENTS)
return false;

- bmap = &buip->bui_format.bui_extents[0];
+ map = &buip->bui_format.bui_extents[0];

- if (bmap->me_flags & ~XFS_BMAP_EXTENT_FLAGS)
+ if (map->me_flags & ~XFS_BMAP_EXTENT_FLAGS)
return false;

- switch (bmap->me_flags & XFS_BMAP_EXTENT_TYPE_MASK) {
+ switch (map->me_flags & XFS_BMAP_EXTENT_TYPE_MASK) {
case XFS_BMAP_MAP:
case XFS_BMAP_UNMAP:
break;
@@ -438,13 +438,13 @@ xfs_bui_validate(
return false;
}

- if (!xfs_verify_ino(mp, bmap->me_owner))
+ if (!xfs_verify_ino(mp, map->me_owner))
return false;

- if (!xfs_verify_fileext(mp, bmap->me_startoff, bmap->me_len))
+ if (!xfs_verify_fileext(mp, map->me_startoff, map->me_len))
return false;

- return xfs_verify_fsbext(mp, bmap->me_startblock, bmap->me_len);
+ return xfs_verify_fsbext(mp, map->me_startblock, map->me_len);
}

/*
@@ -558,18 +558,18 @@ xfs_bui_item_relog(
{
struct xfs_bud_log_item *budp;
struct xfs_bui_log_item *buip;
- struct xfs_map_extent *extp;
+ struct xfs_map_extent *map;
unsigned int count;

count = BUI_ITEM(intent)->bui_format.bui_nextents;
- extp = BUI_ITEM(intent)->bui_format.bui_extents;
+ map = BUI_ITEM(intent)->bui_format.bui_extents;

tp->t_flags |= XFS_TRANS_DIRTY;
budp = xfs_trans_get_bud(tp, BUI_ITEM(intent));
set_bit(XFS_LI_DIRTY, &budp->bud_item.li_flags);

buip = xfs_bui_init(tp->t_mountp);
- memcpy(buip->bui_format.bui_extents, extp, count * sizeof(*extp));
+ memcpy(buip->bui_format.bui_extents, map, count * sizeof(*map));
atomic_set(&buip->bui_next_extent, count);
xfs_trans_add_item(tp, &buip->bui_item);
set_bit(XFS_LI_DIRTY, &buip->bui_item.li_flags);